Smoke-exhaust apparatus



Sept. 3, 1929. L. KELLY 1,726,901

SMOKE EXHAUST APPARATUS Filed April 14, 1928 6 Sheets-Sheet l ATTORNEY] Sept. 3, 1929. KELLY SMOKE EXHAUST APPARATUS Filed April 14, 1928 6 Sheets-Sheet /6 Lllla ATTORNEY ,l I l Sept. 3, 192 9.

L. L. KELLY 1,726,901

SMOKE EXHAUST APPARATUS Filed April 14, 1928 6 Sheets-Sheet 3 IN ENlO R 7% ATTQRNEY;

Sept. 3, 1929.

L. L. KELLY SMOKE EXHAUST APPARATUS Filed April 14, 1928 6 Sheets-Sheet 4 Sept. 3, 1929.- L. L. KELLY SMOKE EXHAUST APPARATUS Filed April 14, 1928 6 Sheets-Sheet Sept. 3,,1929. KELLY 1,726,901

SMOKE EXHAUST APPARATUS Filed April 14, 1928 6 Sheets-Sheet 6 6 v. W. /0 T? /0 fifi 5 66 E6\\ 2/ r J? 1 32 a J 5 26 5 5 6 44 5 f r i 6a a fi C m I 45 4,2 a2? 46 Q 4/ 60 J5 Patented Sept. 3, 1929.

UNITED STATES PATENT QFFECE.

LOOMIS I1. KELLY, OF SALEM, VIRGINIA.

SMOKE-EXHAUST APPARATUS.

Application filed April 14,

My invention relates to a locomotive smoke exhaust apparatus for roundhouses and the like for conducting to the exterior of the building, smoke and other products of combustion from stacks of locomotives.

A principal feature of the invention is to afford improved means for supporting the smoke exhaust apparatus and for adjusting it for operative association with locomotives of various types and sizes.

Another object of the invention is to provide means whereby, when the smoke exhaust apparatus is in operation it may be moved with the associated locomotive when it is desired to shift the latter without disconnecting the apparatus from the locomotive.

A primary feature of the invention resides in forming a locomotive smoke exhaustapparatus with a series of ducts for conveying smoke and other products of combustion from a locomotive to the exterior of a roundhouse, one of said ducts being movable substantially horizontally along the center line of the track upon which the locomotive moves and another of said ducts being supported by the last named duct and being movable substantially vertically for engagement with the stack of the locomotive.

Another feature of the invention consists in constructing a locomotive smoke exhaust apparatus with a plurality of telescoping ducts, one of which is movable substantially horizontally and in associating therewith means for movably supporting said duct involving a trolley device.

A still further feature of the invention consists in providing a locomotive smoke exhaust apparatus with an upwardly telescoping duct for engagement with the stack of the locomotive and in combining therewith improved means cooperable with the locomotive stack whereby movement of the locomotive, when in operative association with the exhaust apparatus, will cause a corre sponding movement of the telescoping duct.

Other and more specific features of the invention, residing in advantageous constructions and relations of parts, will hereinafter appear and be pointed out in the claims.

In the drawings:

Figure 1 is a sectional view of a roundhouse, the smoke exhaust apparatus being shown in side elevation.

Fig. .2 is a front elevational View of the 1928. Serial No. 279,138.

smoke exhaust apparatus, two of the stalls comprising one of the exhaust units being shown.

Fig. 3 is a plan View showing an exhaust unit serving four stalls.

Fig. 4 is an enlarged side elevational view of the front portion of the apparatus illustrated in Fig. 1.

Fig. 5 is a plan view of the portion of the apparatus shown in Fig. 4.

Fig. 6 is a front elevational view of the part of the construction illustrated in Figure L.

Fig. 7 is a fragmentary sectional view of the vertically telescoping duct, the packing device being shown in elevation.

Fig. 8 is an enlarged detailed view of a portion of the packing device.

Fig. 9 is a plan View thereof.

Fig. 10 is a sectional view taken on line 10 10, Fig. 7,

Fig. 11 is'a view taken on line 11-11, Fig. 4.

Fig. 12 is a view taken on line 1212, Fig. 4;.

' Fig. 13 is an enlarged sectional view on the line 1313, Fig. 4.

Fig. 14 is an enlarged detailed side elevational view of a portion of the lower part of the vertically telescoping duct.

Fig. 15 is a front elevational view of the construction illustrated in Fig. 14.

Fig. 16 is an enlarged sectional view taken on line 1616, Fig. i.

Fig. 17 is a sectional view taken on line 17-17, Fig. 16.

Referring to the drawings. the roundhouse is provided with a number or smoke exhaust units, each consisting of a plurality of exhaust devices or apparatuses, an apparatus being preferably provided for each of the stalls in the roundhouse. Each exhaust apparatus comprises an immovable duct A and a plurality of telescoping ducts B and C respectively, the duct B being movable in a substantially horizontal direction along the center line of the track and the duct C being movable in a substantially vertical direction for engagement with the stack of a locomotive. The duct A of each smoke exhaust apparatus of each unit communicates with a duct D leading to an exhaust stack E. Any suitable means, such as a fan F, may be employed for inducing a forced draft in the duct A. A damper G is mounted in each of the ducts A for severally interrupting communication with the duct D.

Disposed above and extending longitudinally of the horizontally telescoping duct B is a supporting member or beam 1 rigidly secured to a portion of the roundhouse structure by an 'le brackets 2. The beam 1 may advantageously be supported adjacent its outer end by a frame 3 consisting of a substantially horizontal member or beam 4 and a diagonal member or beam 5, the beams & and 5 being rigidly connected by braces 6. The frame 3 is secured to an adjacent column 7 of the roundhouse and extends diagonally out-Ward therefrom, being connected to the upper flange 8 of the beam 1 by U-bolts 9. The outer end of the duct B is movably sup ported from the beam by a trolley 10 having a plurality of wheels 11 disposed on opposite sides of the web 12 of the said beam, the Wheels being adapted to roll along the lower flanges 13 of the latter. The sides of the trolley depend below the supporting beam and are secured to the upstanding ends 14 of the band 15 which encircles the outer end of the duct B.

The telescoping duct B is adapted to be moved horizontally by an electric motor 16 or other suitable means. Through suitable iechanisni, such as a sprocket Wheel 17 and a chain 18, the motor drives a shaft 19 upon the opposite end of Which is keyed a sprocket Wheel 20, the shaft 19 being carried by the beam 1 and the sprocket Wheel 20 being mounted to one side thereof. Loosely journailed adjacent the outer end of the beam is a shaft 21 having a sprocket Wheel 22 disposed on the same side of the beam as the sprocket Wheel 520.

Passing around both of these sprocket Wheels is an endless chain 23 which is attached by a bolt 2% to a bracket 25, the latter being rigidly connected to the horizontally telescoping duct B through the interniediacy of an arm or member 26, to be hereinafter described. It will thus be seen that, When. the chain 23 is driven by the motor 16, the horizontally telescoping duct B may be moved in the desired direction.

in order to permit the horizontal duct 13 to telescope easily Within the immovable duct A a roller 27 is preferably mounted upon the inner end of the duct B. The roller is re niovably join-nailed in a bearing 28 rigidly secured to an angle bracket 29, the latter being riveted to the inner face of the duct B.

The outer end of the duct B is provided with an GliOW portion 30 terminating in a downwardly projecting extension 31, Within which the vertically movable duct C telescopes. Secured to the upper part of the elbow 30, preferably by Welding, is a beam member or arm 26 constituting means for supporting the chain hoist device 32 for ac tuating or moving the duct This hoist device is provided with a sprocket Wheel 33 adapted to be actuated by the hand chain 84. In order that the chain 34 may be disposed at a convenient location at one side of the locomotive Which is being operated upon, and to be manipulated from the floor of the roundhouse, an extension arm 35 may advantageously be employed having a sheave 36 for receiving the chain. The hoist device 32 has the usual load sheave and load chain 37 and 38 respectively, the latter being connected by any suitable means, such as a hook 259 With the bale -10 pivotally attached to the duct C. i, i

The lower end of the duct C is fashioned with a preferably circular laterally projecting flange 41 for engagement with the upper edge of a locomotive stack H. To insure proper telescoping movement of the duct C, guide bars 4:2 are secured on opposite sides thereof, the guide bars cooperating with apertured extensions or brackets a3 and id respectively. Secured to the lower ends of the guide bars 12, are angle pieces 45, these pieces being connected to the flange 411 or" the duct C by bolts 46. instead of rigidly attaching the guide bars 42 and horizontal flange 41 of the duct C, the bolts 46 loosely connect these parts to permit their relative movement so that the flange l1 may adjust itself in various angular positions to the top suriace of: a locomotive stack. To compensate for the Weight of the extension arm 35, so that the apparatus as a Whole will be balanced, counter Weight 47 is rigidly mounted by bolts 48 on the side of the exhaust apparatus opposite from that to Which the eXtension arm is secured. Plates 49 are connected in any suitable manner, such as by Welding, to the elbow portion 30 of the duct 13, one oi the plates receiving the upper counter Weight securing bolts 48.

The upper guide bracket 44 is preferably of angle shape and is arranged so that its flanges 50 and 51 Will be respectively horizontal and vertical. The vertical flange 51 affords a convenient surface to Which a por tion of the extension arm 35 may be Welded. Secured to the horizontal flange 50 of the guide bracket n, and respectively connected to opposite sides of the beam 26, are members 52 for bracing the outer end of the said beam. The plates 49, in addition to being secured to the elbow portion of the duct B, are also properly Welded to the inner surfaces of the flanges 50 and 51. It will thus be appreciated that all of the structural parts of the exhaust apparatus adjacent its outer end are connected in a manner such that a very rigid construction is produced.

Secured to opposite sides of the member 26 are a plurality of brackets 53 and 54 respectively. The bracket 53 is fashioned with a portion for supporting the upper section of the endless chain 23; the flanges 55 thereof affording means for guiding the said chain. The bracket 54 is formed with an extension 56 forcoacting with depending arms of limit switches 57. The limit switches are carried by the beam 1 and are located so as to open the motor circuit upon the extension 56 respectively engaging the depending arms of the switches when the horizontal duct B approaches its limit of travel in either direction. Pivotally secured to projections 58 on opposite sides of the horizontal flange 41, are depending links 59. Frangible pins 60 are employed for locking the links 59 to the projections 58. WVhen the horizontal duct has been moved into a position such that the vertically movable telescoping duct may be lowered on a locomotive stack, the links 59 normally depend in overlapping relation to the upper portion of the stack. Should it be desirable to move the locomotive when in operative association with the vertically movable duct the locomotive stack will engage with the depending link 59, disposed in the path of travel of the locomotive, and thus cause a corresponding movement of the horizontally telescoping duct B.

If the locomotive is moved beyond the limits of horizontal travel of the duct B, the force transmitted from the locomotive to the links 59 will shear the frangible pins 60, thus permitting the cooperating link 59 to assume an inoperative position enabling continued movement of the locomotive without damage to the exhaust apparatus. Interposed between each of the relatively movable telescoping sections is a packing 61. Each packing has a flexible packing ring 62, the opposed ends of which are fashioned with suitable clips 63 affording means to which a normally contracting spring 64 may be attached. The spring and the opposite ends of the packing ring are housed within a substantially channel-shaped member 65 constituting a continuation of the packing ring. One end of the packing ring is rigidly connected to this housing, as by a rivet 66, while the other end thereof is permitted to move rela tively thereto. Any suitable means may be employed for preventing longitudinal movement of the packing, the means in the present case comprising circular members 67 and 68 respectively secured to the inner and outer faces of the outer duct of each of the relatively movable ducts. The member 68 has secured thereto a plate portion 69 which extends inwardly in overlapping relation to one side of the packing 61, while the member 67 overlappingly cooperates with the opposite side thereof. It will thus be seen that smoke or other products of combustion are effectively prevented from escaping into the roundhouse and that when reduced pressure is created in the ducts by the fan, air is prevented from entering the ducts at their joints.

When the smoke exhaust apparatus is in communication with the stack of a cold locomotive, i. e. one not in use, the damper in the duct A is closed and when in communication with a smoldering locomotive, the damper is slightly opened or cracked to permit smoke and other products of combustion to flow from the locomotive stack through the respective ducts to the stack of the exhaust system. l Vhen it is desired to fire-up the locomotive the damper A is fully opened and the fan F is operated to induce a forced draft in the ducts. If, in the exhaust unit illustrated in Figure 3, only one of the exhaust devices is in use, or, should two or more of them be operatively connected to respective locomotives and it is desired to fire-up only one of them, the dampers G in each of the ducts A will be closed, excepting the one in the duct having communication with the locomotive to be fired:

I claim:

1. A locomotive smoke exhaust apparatus for roundhouses and the like involving an exhaust stack, and a series of ducts for conveying smoke from a locomotive to the stack comprising an immovable duct and a plurality of relatively movable ducts, one of said last-named ducts being movable substantially horizontally alongthe center line of the track upon which the locomotive is adapted to move and the other of said lastnamed ducts being supported by the horizontally movable duct and being movable substantially vertically for engagement with the stack of the locomotive.

2. A locomotive smoke exhaust apparatus for roundhouses and the like involving an exhaust stack, a plurality of telescoping ducts having communication therewith, one of said ducts being movable substantially horizontally along the center line of the track upon which the locomotive is adapted to move, the other of said ducts being movable substantially vertically for engagement with the locomotive stack and being movable independently of the horizontally movable duct, and a plurality of means for respec tively moving said ducts.

3. A locomotive exhaust apparatus for roundhouses and the like involving an exhaust stack, a plurality of telescoping ducts having communication therewith, one of said ducts being movable in a substantially horizontal direction along the center line of the track upon which the locomotive is adapted to move and being fashioned with a downwardly projecting extension, the other of said ducts having communication with said extension and being movable relatively thereto in a substantially vertical direction for engagement with the locomotive stack, and a plurality of means for respectively moving said ducts.

t. A locomotive smoke exhaust apparatus for roundhouses and the like involving an exhaust stack, a plurality of relatively movable ducts communicating therewith, one of said ducts being movable in a substantially horizontal direction along the center line of the track upon which the locomotive is adapted to move, the other of said ducts belllg' movable substantially vertically for engagement with the locomotive stack, and means for movably supporting said horizontally movable ductinvolving a rigidly mounted member and a wheeled device connected to said duct and engageable with said member.

5. A locomotive smoke exhaust apparatus for roundhouses and the like involving an exhaust stack, a series of ducts for conveying smoke from a locomotive to the stack comprising an immovable duct and a plurality of relatively movable ducts, one of said ducts being movable substantially horizontally along the center line of the track upon which the locomotive is adapted to be moved, a supporting member for said last named duct, and means movably connecting the outer end of the latter to the supporting member involving a trolley device.

6. A locomotive smoke exhaust apparatus for roundhouses and the like involving an exhaust stack, a series of ducts comprising a horizontally telescoping duct and a vertically telescoping duct, the latter being engageable with a locomotive stack, means for supporting said horizontally telescoping duct adjacent its outer end, and means for moving said last-named duct.

7. A locomotive smoke exhaust apparatus for roundhouses and the like involving an exhaust stack, a substantially horizontally telescoping duct, a substantially vertically telescoping duct, the latter being adapted to engage a locomotive stack, a trolley device connected to the horizontally telescoping member adjacent its outer end and constituting a support for the latter, and means for moving said trolley device.

SLA locomotive smoke exhaust apparatus for roundhouses and the like involving an exhaust stack, a plurality of telescoping ducts, one of which is horizontally movable, a trolley device connected to said horizontally telescoping duct adjacent its outer end for supporting the latter, and means for actuating said trolley device involving an endless chain having a portion secured to said horizontally telescoping duct.

9. A locomotive smoke exhaust apparatus for roundhouses and the like involving an exhaust stack a plurality of telescoping ducts communicating therewith, one of said ducts being disposed substantially horizontally and the other being disposed substantially vertically, a trolley device connected to said horizontal duct adjacent its outer end for m'pvably supporting the latter, means for moving said horizontal duct involving an electric motor and an endless chain driven thereby, a plurality of limit switches, and means carried by said horizontal ductfor cooperating with said switches to arrest movement of the said duct.

10. A locomotive smoke exhaust apparatus for roundhouses and the like involving an exhaust stack, a substantially horizontally telescoping duct, a substantially vertically telescoping duct engageable with the stack of a locomotive, a beam member mounted above said horizontal telescoping section, a trolley device carried by said beam member and connected to said first-named duct for movably supporting it, and means for moving said duct involving an electric motor, a plurality of sprocket wheels, and an endles chain passing around said wheels, a portion of said chain being secured to said horizontally telescoping duct.

' 11. A locomotive smoke exhaust apparatus for roundhouses and the like involving an exhaust stack, an upwardly telescoping duct having communication therewith, said duct being provided adjacent its lower end with a substantially horizontal flange portion for engagement with the stack of the locomotive, and means depending from said flange and cooperable with a portion of said locomotive stack whereby movement of the locomotive when in operative association with the exhaust apparatus will cause a corresponding movement of the telescoping duct.

- 12. A locomotive smoke exhaust apparatus for roundhouses and the like involving an exhaust stack, a telescoping duct having communication therewith, said duct being provided adjacent its lower end with a substantially horizontal flange portion for engagement with the stack of the locomotive, and means depending from said horizontal flange involving a plurality of pivotally mounted links and frangible pins respectively passing through said links and portions of said flange, said links being en ageable with portions of a locomotive stack so that movement of the locomotive when in operative association with the smoke exhaust apparatus will cause a corresponding movement of said duct.

13. A locomotive smoke exhaust apparatus for roundhouses and the like involving an exhaust stack, a substantially horizontally telescoping duct, a substantially vertically telescoping duct, said last-named duct being provided with a substantially horizontal flange for engagement with the stack of a locomotive, and means depending from said flange, the stack of the locomotive being engageable with said means so as to cause said horizontally telescoping duct to move with the locomotive when the latter is moved while in operative association with the smoke exhaust apparatus.

14. A locomotive smoke exhaust apparatus for roundhouses and the like involving an exhaust stack, a substantially horizontally telescoping duct, a substantially vertically telescoping duct cooperable with the stack of a locomotive, means carried by said lastnamed duct and engageable with a side of the said locomotive stack so that movement of the locomotive in one direction will cause a corresponding movement of the horizontally telescoping duct, and frangible means immovably connecting said means to the vertically telescoping duct so as to permit said first-named means to assume an inoperative position when the horizontally telescoping duct reaches its limit of travel.

15. A locomotive smoke exhaust apparatus for roundhouses and the like involving an exhaust stack, a telescoping duct having communication therewith, said duct being provided adjacent its outer end with a normally substantially horizontal flange, and means for guiding said telescoping duct, said means being flexibly connected to said duct for permitting the flange thereof to assume a plurality of angular positions.

16. A locomotive smoke exhaust apparatus for roundhouses and the like involving an exhaust stack, a series of ducts for conveying smoke from a locomotive to the stack comprisin an immovable duct and a plurality of telescoping ducts, one of said telescoping ducts being movable substantially horizontally and the other being movable substantially vert cally, a trolley device connected to said hor1- zontally movable duct adjacent its outer end for movably supporting the latter, and a roller operatively interposed between the last-named duct and the immovable duct aiiording a support for the inner end of the horizontally movable duct.

17. A locomotive smoke exhaust apparatus for roundhonses and the like involving an exhaust stack, a substantially horizontal telescoping duct, a substantially vertically telescoping duct, a member rigidly connected to said horizontally telescoping duct affording means for supporting said vertically telescoping duct.

18. A locomotive smoke exhaust device for roundhouses and the like involving an exhaust stack, a substantially horizontally telescoping duct, a substantially vertically telescoping duct, a member rigidly secured to said horizontally telescoping duct and a hoist device supported by said member for actuating said vertically telescoping section.

19. A locomotive smoke exhaust device for roundhouses and the like involving an exhaust stack, a plurality o1"- telescoping ducts having communication therewith, one of said ducts being horizontally movable and the other of said ducts being vertically movable, a member rigidly connected to said horizontally movable duct, a hoist device supported by said member, a laterally eX- tending arm secured to said horizontally movable duct, and means for actuating said hoist device for raising and lowering said vertically movable duct, said arm affording a support to maintain the lower end of the hoist operating means at one side of the locomotive which is in operative association with the smoke exhaust apparatus.

20. A locomotive smoke exhaust appara tus for roundhouses and the like, an exhaust stack, a plurality of telescoping ducts having communication therewith, one of said ducts being movable in a substantially horizontal direction and the other of said ducts being movable in a substantially vertical direction, and packing device encircling each of said telescoping ducts comprising a packing member, normally contracting resilient means connecting the opposite ends of said packing member, means overlapping said resilient means and the said ends of the packing memher and constituting a continuation of the said member, one of said ends being immovably secured to said overlapping means and the other being movable relatively thereto.

In testimony whereof I afiix my signature.

LOOMIS L. KELLY. 

